Simplify.-(4y - 8) + 7(5y + 10)
A. 31y + 2
B. 31y + 62
C. 31y + 78
D. 31y + 18
Answer: C
You might also like to view...
Find the exact value. Do not use a calculator.csc 
A. 
B. 
C. 
D. 2
Use the vertical line test to determine whether the graph represents a function.
A. not a function B. function
Find the center, foci, and vertices of the ellipse.36(x + 3)2 + 25(y + 1)2 = 900
A. center at (-1, -3)
foci at (-1, -3 - 
), (-1, -3 + 
)
vertices at (-1, 5), (-1, -7)
B. center at (3, -1)
foci at (3, -1 - 
), (3, -1 + 
)
vertices at (3, 5), (3, -7)
C. center at (-3, -1)
foci at (-3, -1 - 
), (-3, -1 + 
)
vertices at (-3, 5), (-3, -7)
D. center at (-2, -1)
foci at (-2, -1 - 
), (-2, -1 + 
)
vertices at (-2, 5), (-2, -7)
Use the REGRESSION feature on a graphing calculator.A strain of E-coli Beu-recA441 is placed into a petri dish at 30?Celsius and allowed to grow. The following data are collected. Theory states that the number of bacteria in the petri dish will initially grow according to the law of uninhibited growth. The population is measured using an optical device in which the amount of light that passes through the petri dish is measured. 
Find the exponential equation in the form y = a ? bx, where x is the hours of growth. Round to four decimal places.
A. y = 1.3384 ? 0.0903x B. y = 0.0903x C. y = 0.0903 ? 1.3384x D. y = 1.3384x